As the prosecution and defence put forward their closing statements during his trial, Hinds broke down in court. Miss Furlong’s father Andrew said his “blood was boiling” as he listened to evidence.

Mr Furlong, his wife Angie and Miss Furlong’s sister Andrea are in Tokyo to hear the case. Hinds has admitted lightly pressing on Miss Furlong’s neck but denies killing her intentionally. He told the court she was very drunk and claimed she asked him to place his hand on her neck.

The family is due to give impact statements. Outside court, Mr Furlong said: “In writing things down it will put our feelings out in the court of what we feel has happened to us.

“No parent should have to go through it. There are times my blood is boiling and I want to go and grab [Hinds] and grab the defence by the throat for everything they’ve been saying but you just can’t.”

Miss Furlong, a Dublin City University undergraduate from Co Wexford, was found unconscious at the hotel in May last year when police were called after a loud noise was heard from Hinds’s room in the early hours. She died later in hospital.

She was studying in Japan under an exchange scheme at Takasaki City University of Economics and was in Tokyo to see a pop concert with an Irish girlfriend. After the show, the women met Hinds and James Blackston, 23, a dancer from Los Angeles, and the four went to a bar together. A verdict in the case is due next Tuesday.

In a separate trial in Tokyo, Blackston was convicted today of sexually assaulting the friend and sentenced to three years in prison. Prosecutors had asked for a four-year sentence.